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Seasonal Response and Recovery of Eelgrass (Zostera marina) to Short-Term Reductions in Light Availability

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Abstract

Anthropogenic activities in the marine nearshore, such as dredging and construction, can significantly reduce light availability for seagrasses through increased turbidity. Seagrass resilience to such shading depends on the seasonal timing of the event, as water temperature and photoperiod strongly influence plant response to disturbance. We examined the response and recovery of Zostera marina to 9 weeks of low and moderate light reduction (35 and 64% reduction) implemented in situ during the spring/mid-summer growth and late summer/fall senescence periods. Fall shading had the most severe impacts, with shoot densities of both low and moderate shade plants decreasing faster to lower densities relative to controls (unshaded plants), than observed during spring shading. Moderate shade plants in the fall also had high leaf loss, reduced growth and chlorophyll content, and utilized stored rhizome water-soluble carbohydrates, whereas in the spring, they had lower leaf loss, increased growth and chlorophyll content, and did not utilize stored carbohydrates. Although most physiological aspects of both spring and fall shaded plants recovered rapidly with restoration of ambient light, shoot density did not, remaining lower than unshaded plants into the next growing season. The stronger impact of fall shading resulted from the decreased photoperiod and daily light saturation, which caused plants to drastically alter their morphology and density to maintain carbon balance. Our study shows that Z. marina resilience to light reduction depends on its seasonal timing, suggesting that nearshore activities affecting light availability should be conducted during periods of maximum plant resilience.

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References

  • Abal, E.G., N. Loneragan, P. Bowen, C.J. Perry, J.W. Udy, and W.C. Dennison. 1994. Physiological and morphological responses of the seagrass Zostera capricorni Aschers, to light intensity. Journal of Experimental Marine Biology and Ecology 178: 113–129.

    Google Scholar 

  • Ainsworth, E.A., and K.M. Gillespie. 2007. Estimation of total phenolic content and other oxidation substrates in plant tissues using Folin-Ciocalteu reagent. Nature Protocols 2: 875–878.

    CAS  Google Scholar 

  • Alcoverro, T., R.C. Zimmerman, D.G. Kohrs, and R.S. Alberte. 1999. Resource allocation and sucrose mobilization in light-limited eelgrass Zostera marina. Marine Ecology Progress Series 187: 121–131.

    CAS  Google Scholar 

  • Boese, B.L., J.E. Kaldy, P.J. Clinton, P.M. Eldridge, and C.L. Folger. 2009. Recolonization of intertidal Zostera marina L.(eelgrass) following experimental shoot removal. Journal of Experimental Marine Biology and Ecology 374: 69–77.

    Google Scholar 

  • Brock, T.D. 1981. Calculating solar radiation for ecological studies. Ecological Modelling 14: 1–97.

    Google Scholar 

  • Bulthuis, D.A. 1983. Effects of in situ light reduction on density and growth of the seagrass Heterozostera tasmanica (Martens ex Aschers.) den Hartog in Western Port, Victoria, Australia. Journal of Experimental Marine Biology and Ecology 67: 91–103.

    Google Scholar 

  • Burke, M.K., W.C. Dennison, and K.A. Moore. 1996. Non-structural carbohydrate reserves of eelgrass Zostera marina. Marine Ecology Progress Series 137: 195–201.

    CAS  Google Scholar 

  • Burkholder, J.M., D.A. Tomasko, and B.W. Touchette. 2007. Seagrasses and eutrophication. Journal of Experimental Marine Biology and Ecology 350: 46–72.

    Google Scholar 

  • Bush, E., and D.S. Lemmen, eds. 2019. Canada’s changing climate report, 444pp. Ottawa: Government of Canada.

    Google Scholar 

  • Chartrand, K.M., C.V. Bryant, A.B. Carter, P.J. Ralph, and M.A. Rasheed. 2016. Light thresholds to prevent dredging impacts on the Great Barrier Reef seagrass, Zostera muelleri ssp. capricorni. Frontiers in Marine Science 3: 1–17.

    Google Scholar 

  • Clausen, K.K., D. Krause-Jensen, B. Olesen, and N. Marbà. 2014. Seasonality of eelgrass biomass across gradients in temperature and latitude. Marine Ecology Progress Series 506: 71–85.

    Google Scholar 

  • Close, D.C., and C. McArthur. 2002. Rethinking the role of many plant phenolics–protection from photodamage not herbivores? Oikos 99: 166–172.

    CAS  Google Scholar 

  • Collier, C.J., P.S. Lavery, P.J. Ralph, and R.J. Masini. 2009. Shade-induced response and recovery of the seagrass Posidonia sinuosa. Journal of Experimental Marine Biology and Ecology 370.

    Google Scholar 

  • Dalla Via, J., C. Sturmbauer, G. Schönweger, E. Sötz, S. Mathekowitsch, M. Stifter, and R. Rieger. 1998. Light gradients and meadow structure in Posidonia oceanica: ecomorphological and functional correlates. Marine Ecology Progress Series 163: 267–278.

    Google Scholar 

  • Dennison, W.C., and R.S. Alberte. 1982. Responses of Zostera marina L . ( Eelgrass ) to in situ manipulations of light intensity. Oecologia 55 (2): 137–144.

    Google Scholar 

  • Dennison, W.C., and R.S. Alberte. 1985. Role of daily light period in the depth distribution of Zostera marina (eelgrass). Marine Ecology Progress Series 25: 51–61.

    Google Scholar 

  • Duarte, C.M. 1989. Temporal biomass variability and production/biomass relationships of seagrass communities. Marine Ecology Progress Series 51: 269–276.

    Google Scholar 

  • Duarte, C.M. 1991. Allometric scaling of seagrass form and productivity. Marine Ecology Progress Series 77: 289–300.

    Google Scholar 

  • Enríquez, S., and N.I. Pantoja-Reyes. 2005. Form-function analysis of the effect of canopy morphology on leaf self-shading in the seagrass Thalassia testudinum. Oecologia 145 (2): 235–243.

    Google Scholar 

  • Erftemeijer, P.L.A., and R.R. Robin Lewis. 2006. Environmental impacts of dredging on seagrasses: A review. Marine Pollution Bulletin 52 (12): 1553–1572.

    CAS  Google Scholar 

  • Fitzpatrick, J., and H. Kirkman. 1995. Effects of prolonged shading stress on growth and survival of seagrass Posidonia australis in Jervis Bay, New South Wales, Australia. Marine Ecology Progress Series 127: 279–289.

    Google Scholar 

  • Giesen, W.B.J.T., M.M. van Katwijk, and C. den Hartog. 1990. Eelgrass condition and turbidity in the Dutch Wadden Sea. Aquatic Botany 37: 71–85.

    Google Scholar 

  • Govers, L.L., W. Suykerbuyk, J.H.T. Hoppenreijs, K. Giesen, T.J. Bouma, and M.M. Van Katwijk. 2015. Rhizome starch as indicator for temperate seagrass winter survival. Ecological Indicators 49: 53–60.

    CAS  Google Scholar 

  • Harrison, P.G., and C. Durance 1989. Seasonal variation in phenolic content of eelgrass shoots. Aquatic Botany 35: 409–413.

    CAS  Google Scholar 

  • Jarvis, J.C., and K.A. Moore. 2010. The role of seedlings and seed bank viability in the recovery of Chesapeake Bay, USA, Zostera marina populations following a large-scale decline. Hydrobiologia 649: 55–68.

    Google Scholar 

  • Kim, Y.K., S.H. Kim, and K.-S. Lee. 2015. Seasonal growth responses of the seagrass Zostera marina under severely diminished light conditions. Estuaries and Coasts 38: 558–568.

    CAS  Google Scholar 

  • Kirk, J.T. 2011. Light and photosynthesis in aquatic ecosystems. Cambridge University Press.

  • Lavery, P.S., K. McMahon, M. Mulligan, and A. Tennyson. 2009. Interactive effects of timing, intensity and duration of experimental shading on Amphibolis griffithii. Marine Ecology Progress Series 394: 21–33.

    Google Scholar 

  • Lee, K.S., S.R. Park, and Y.K. Kim. 2007a. Effects of irradiance, temperature, and nutrients on growth dynamics of seagrasses: A review. Journal of Experimental Marine Biology and Ecology 350: 144–175.

    Google Scholar 

  • Lee, K.S., J.I. Park, Y.K. Kim, S.R. Park, and J.H. Kim. 2007b. Recolonization of Zostera marina following destruction caused by a red tide algal bloom: the role of new shoot recruitment from seed banks. Marine Ecology Progress Series 342: 105–115.

    CAS  Google Scholar 

  • Longstaff, B.J., and W.C. Dennison. 1999. Seagrass survival during pulsed turbidity events: The effects of light deprivation on the seagrasses Halodule pinifolia and Halophila ovalis. Aquatic Botany 65: 105–121.

    Google Scholar 

  • Madden, C.J., and W.M. Kemp. 1996. Ecosystem model of an estuarine submersed plant community: calibration and simulation of eutrophication responses. Estuaries 19: 457.

    CAS  Google Scholar 

  • Marsh, J.A., W.C. Dennison, and R.S. Alberte. 1986. Effects of temperature on photosynthesis and respiration in eelgrass (Zostera marina L.). Journal of Experimental Marine Biology and Ecology 101: 257–267.

    Google Scholar 

  • Masuko, T., A. Minami, N. Iwasaki, T. Majima, S.I. Nishimura, and Y.C. Lee. 2005. Carbohydrate analysis by a phenol–sulfuric acid method in microplate format. Analytical Biochemistry 339: 69–72.

    CAS  Google Scholar 

  • McMahon, K., P.S. Lavery, and M. Mulligan. 2011. Recovery from the impact of light reduction on the seagrass Amphibolis griffithii, insights for dredging management. Marine Pollution Bulletin 62 (2): 270–283.

    CAS  Google Scholar 

  • McMahon, K., C. Collier, and P.S. Lavery. 2013. Identifying robust bioindicators of light stress in seagrasses: A meta-analysis. Ecological Indicators 30: 7–15.

    Google Scholar 

  • Moore, K.A., R.L. Wetzel, and R.J. Orth. 1997. Seasonal pulses of turbidity and their relations to eelgrass (Zostera marina L.) survival in an estuary. Journal of Experimental Marine Biology and Ecology 215: 115–134.

    Google Scholar 

  • Moore, K.A., E.C. Shields, D.B. Parrish, and R.J. Orth. 2012. Eelgrass survival in two contrasting systems: role of turbidity and summer water temperatures. Marine Ecology Progress Series 448: 247–258.

    Google Scholar 

  • Nejrup, L.B., and M.F. Pedersen. 2008. Effects of salinity and water temperature on the ecological performance of Zostera marina. Aquatic Botany 88: 239–246.

    Google Scholar 

  • Ochieng, C.A., F.T. Short, and D.I. Walker. 2010. Photosynthetic and morphological responses of eelgrass (Zostera marina L.) to a gradient of light conditions. Journal of Experimental Marine Biology and Ecology 382: 117–124.

    CAS  Google Scholar 

  • Orth, R.J., T.J.B. Carruthers, W.C. Dennison, C.M. Duarte, J.W. Fourqurean, K.L. Heck, A.R. Hughes, et al. 2006. A global crisis for seagrass ecosystems. Bioscience 56: 987–996.

    Google Scholar 

  • Platt, T., A. Prakash, and B. Irwin. 1972. Phytoplankton, nutrients and flushing of inlets on the coast of Nova Scotia. Naturaliste Canadien 99: 253–261.

    Google Scholar 

  • Priestley, M.B. 2004. Spectral analysis and time series, 877. London: Academic Press.

    Google Scholar 

  • Ralph, P.J., M.J. Durako, S. Enríquez, C.J. Collier, and M.A. Doblin. 2007. Impact of light limitation on seagrasses. Journal of Experimental Marine Biology and Ecology 350: 176–193.

    Google Scholar 

  • Ritchie, R.J. 2006. Consistent sets of spectrophotometric chlorophyll equations for acetone, methanol and ethanol solvents. Photosynthesis Research 89: 27.

    CAS  Google Scholar 

  • Serrano, O., M.A. Mateo, and P. Renom. 2011. Seasonal response of Posidonia oceanica to light disturbances. Marine Ecology Progress Series 423: 29–38.

    Google Scholar 

  • Shoaf, W.T., and B.W. Lium. 1976. Improved extraction of chlorophyll a and b from algae using dimethyl sulfoxide. Limnology and Oceanography 21: 926–928.

    CAS  Google Scholar 

  • Short, F.T., and S. Wyllie-Echeverria. 1996. Natural and human-induced disturbance of seagrasses. Environmental Conservation 23: 17–27.

    Google Scholar 

  • Short, F., T. Carruthers, W. Dennison, and M. Waycott. 2007. Global seagrass distribution and diversity: A bioregional model. Journal of Experimental Marine Biology and Ecology 350: 3–20.

    Google Scholar 

  • Smith, T.M., P.H. York, P.I. Macreadie, M.J. Keough, D.J. Ross, and C.D. Sherman. 2016. Recovery pathways from small-scale disturbance in a temperate Australian seagrass. Marine Ecology Progress Series 542: 97–108.

    CAS  Google Scholar 

  • Staehr, P.A., and J. Borum. 2011. Seasonal acclimation in metabolism reduces light requirements of eelgrass (Zostera marina). Journal of Experimental Marine Biology and Ecology 407: 139–146.

    Google Scholar 

  • Touchette, B.W., and J.M. Burkholder. 2000. Overview of the physiological ecology of carbon metabolism in sea grasses. Journal of Experimental Marine Biology and Ecology 250: 169–205.

    CAS  Google Scholar 

  • Vergeer, L.H.T., T.L. Aarts, and J.D. de Groot. 1995. The “wasting disease” and the effect of abiotic factors (light-intensity, temperature, salinity) and infection with Labyrinthula zosterae on the phenolic content of Zostera marina shoots. Aquatic Botany 52: 35–44.

    CAS  Google Scholar 

  • Vichkovitten, T., M. Holmer, and M.S. Frederiksen. 2007. Spatial and temporal changes in non-structural carbohydrate reserves in eelgrass (Zostera marina L.) in Danish coastal waters. Botanica Marina 50: 75–87.

    CAS  Google Scholar 

  • Vollenweider, R.A. 1965. Calculation models of photosynthesis-depth curves and some implications regarding day rate estimates in primary production measurements. Memorie dell'Istituto Italiano di Idrobiologia 18: 425–457.

    Google Scholar 

  • Walker, D.I., and A.J. McComb. 1992. Seagrass degradation in Australian coastal waters. Marine Pollution Bulletin 25: 191–195.

    Google Scholar 

  • Waycott, M., C.M. Duarte, T.J.B. Carruthers, R.J. Orth, W.C. Dennison, S. Olyarnik, A. Calladine, et al. 2009. Accelerating loss of seagrasses across the globe threatens coastal ecosystems. Proceedings of the National Academy of Sciences of the United States of America 106 (30): 12377–12381.

    CAS  Google Scholar 

  • Wong, M.C. 2018. Secondary production of macrobenthic communities in seagrass (Zostera marina, eelgrass) beds and bare soft sediments across differing environmental conditions in Atlantic Canada. Estuaries and Coasts 41: 536–548.

    Google Scholar 

  • Wong, M.C., M.A. Bravo, and M. Dowd. 2013. Ecological dynamics of Zostera marina (eelgrass) in three adjacent bays in Atlantic Canada. Botanica Marina 56: 413–424.

    Google Scholar 

  • Wu, P.P.Y., K. Mengersen, K. McMahon, G.A. Kendrick, K. Chartrand, P.H. York, et al. 2017. Timing anthropogenic stressors to mitigate their impact on marine ecosystem resilience. Nature Communications 8: 1263.

    Google Scholar 

  • Zapata, O., and C. McMillan. 1979. Phenolic acids in seagrasses. Aquatic Botany 7: 307–317.

    CAS  Google Scholar 

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Acknowledgements

We thank A. Campbell, J. Hogenbom, D. Krug, B. Roethlisberger, M. Scarrow, and C. Siong for assistance in the field and laboratory. Anonymous reviewers provided helpful comments that improved the manuscript.

Funding

Funding was provided by Fisheries and Oceans Canada.

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  1. Bedford Institute of Oceanography, Fisheries and Oceans Canada, Dartmouth, Nova Scotia, Canada

    Melisa C. Wong, Gwendolyn Griffiths & Benedikte Vercaemer

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  1. Melisa C. Wong
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  2. Gwendolyn Griffiths
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  3. Benedikte Vercaemer
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Correspondence to Melisa C. Wong.

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Communicated by Masahiro Nakaoka

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Wong, M.C., Griffiths, G. & Vercaemer, B. Seasonal Response and Recovery of Eelgrass (Zostera marina) to Short-Term Reductions in Light Availability. Estuaries and Coasts 43, 120–134 (2020). https://doi.org/10.1007/s12237-019-00664-5

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